156B Week 2

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • CAD of the custom bits completed. 

  • CAD of Gear Train System in Progress

  • Design for Ball Holder has not been decided on

  • CNC Machine ordered

Accomplishments from Previous Week

• • CNC machine has been ordered

  • Settled on a final design involving a 6 probe drill bit system 

    • CNC machine will be used 

    • 6 probe gear train system will be attached to the CNC machine 

    • Probes will have bits at the end that will spin and will be angled in order to allow for all 6 flash on one pole to be polished at once. 

    • Ball no longer needs to be rotated; instead, it will be held using a clamp in place. 

  • CAD of custom bit has been completed 

  • Chapter 1 of Report is completed

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Receive CNC machine and bring it to campus (Marshall)

  • Calibrate the CNC machine for the middle pentagon flash (Marshall/Aaron)

  • Finish Gear Train CAD (Jacen)

  • Design and CAD a ball clamp system for the CNC Machine 

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Agreed to order the CNC machine (email: 4/15/19)

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • Recommended looking into using metal 3D printing for the pin supports (in person 4/9/18)

  • Approved of final design (in person 4/9/18)

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • N/A

Risks and Areas of Concern

• • Will the gear train system work?

  • Instead of using probes to determine depth of dimple, can an average of dimple depth be taken and the end bits are lowered to that average depth for polishing?

  • Will 3D printing custom bits with metal be sufficient, or do custom bits need to be ordered. 

Resources or Information Required but not Available

• • How polishing may affect the roughness of the golf ball dimple

Schedule

• • Milestone: Need to finish CAD and calibrate CNC machines by the end of next week. 

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • Spent: $286.43

  • Remaining: 9,713.57

Progress on Report and Webpage

• • Chapter 1 of Report has been completed

  • Editing on front page has begun